Adjustable lighting fixture



FIG. 1 is a perspective view of an adjustable lighting fixture embodying my new design, the broken lines illustrating the balance of a typical installation within which the adjustable lighting fixture is utilized;

FIG. 2 is an enlarged front elevational view thereof, the rear elevational view being a mirror image;

FIG. 3 is an enlarged top plan view thereof; and

FIG. 4 is an enlarged bottom plan view thereof. 

The ornamental design for an adjustable lighting fixture, as shown and described. 